A scanline is a line on a CRT tube, made up of dots. The word line apparently derives from the Latin linum, meaning flax plant from which linen is produced; at one time, a stretched linen thread was the most reliable way to determine a straight line. ... The initialism CRT has more than one use: In electronics, the cathode ray tube of a display device, such as a television In U.S. schools, the Criterion-Referenced Test In mathematics, the Chinese remainder theorem This is a disambiguation page — a navigational aid which lists other pages that might... Directly Observed Treatment (DOT) or Directly Observed Therapy is watching the patient take his/her medication to ensure medications are taken in the right combination and for the correct duration. ...